3M™ High Performance Depressed Centre Grinding Wheels are designed for everyday professional use on most common substrates. The lower half of our wheels have different colours to highlight which substrate they are designed for, making it easier to choose the right wheel. Please select the correct product for your specific application.
Use 3M™ High Performance Depressed Centre Grinding Wheels on a range of substrates. Please select the correct product for your specific application. INOX/Steel: A mixture of 3M Precision Shaped Grain and aluminium oxide which cuts fast and has a long life. This grain cuts cool, ensuring these cut-off wheels work well on heat sensitive metals like stainless and mild steel. These wheels have iron, sulphur and chlorine content <0,1% therefore are suitable for stainless steels. P-Hardness. INOX: Depressed centre grinding wheels designed for stainless steel, softer than wheels for steel for a more free cutting performance. Made with aluminium oxide grain, these wheels have iron, sulphur and chlorine content <0,1% therefore are suitable for stainless steels. P/Q Hardness. Steel-medium/Steel-hard: Depressed centre grinding wheels for steel, a general recommendation is medium for flat surface defect removal and hard for edge grinding and tougher applications. Aluminium oxide grain. Medium Q Hardness, Hard R Hardness. Non-ferrous: Depressed centre grinding wheels designed for aluminium, brass and other non-ferrous materials. Aluminium oxide grain. Soft wheels for good cutting performance. N-Hardness. Foundry: Depressed centre grinding wheels designed for foundries. Made with aluminia zirconia grain and provide long life even when in contact with glass and carbide particles in the cast skin. T-Hardness. Depressed centre grinding wheels are available in Type 27 variants. Type 27 wheels have a depressed centre and are used for grinding. They should always be used with an appropriate guard. Our wheels are used in many industries and applications such as on turbine engines, metal implants and general metal fabricated parts.
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